DEA schedule
Is diltiazem a controlled substance?
Federal schedule for diltiazem from the FDA NDC directory, checked against the DEA controlled substances list.
Source: FDA NDC Directory file dated 2026-10-22. Publisher page
No. Diltiazem is not a federally controlled substance. None of its FDA NDC listings carries a DEA schedule, and diltiazem is not on the DEA controlled substances list.
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Schedule check
| Source | What it lists |
|---|---|
| FDA NDC directory | 299 prescription listings from 55 labelers, none with a DEA schedule |
| DEA controlled substances list | diltiazem is not on the list |
Diltiazem NDC listings
| NDC | Product | Form | Strength | Labeler | DEA schedule |
|---|---|---|---|---|---|
| 0187-0792 | Cardizem | tablet, coated | 120 mg/1 | Bausch Health US LLC | None |
| 0187-0771 | Cardizem | tablet, coated | 30 mg/1 | Bausch Health US LLC | None |
| 0187-0772 | Cardizem | tablet, coated | 60 mg/1 | Bausch Health US LLC | None |
| 0187-0795 | Cardizem CD | capsule, coated, extended release | 120 mg/1 | Bausch Health US LLC | None |
| 0187-0796 | Cardizem CD | capsule, coated, extended release | 180 mg/1 | Bausch Health US LLC | None |
| 0187-0797 | Cardizem CD | capsule, coated, extended release | 240 mg/1 | Bausch Health US LLC | None |
| 0187-0798 | Cardizem CD | capsule, coated, extended release | 300 mg/1 | Bausch Health US LLC | None |
| 0187-0799 | Cardizem CD | capsule, coated, extended release | 360 mg/1 | Bausch Health US LLC | None |
| 0187-2045 | Cardizem LA | tablet, extended release | 120 mg/1 | Bausch Health US LLC | None |
| 0187-2046 | Cardizem LA | tablet, extended release | 180 mg/1 | Bausch Health US LLC | None |
| 0187-2047 | Cardizem LA | tablet, extended release | 240 mg/1 | Bausch Health US LLC | None |
| 0187-2048 | Cardizem LA | tablet, extended release | 300 mg/1 | Bausch Health US LLC | None |
| 0187-2049 | Cardizem LA | tablet, extended release | 360 mg/1 | Bausch Health US LLC | None |
| 0187-2050 | Cardizem LA | tablet, extended release | 420 mg/1 | Bausch Health US LLC | None |
| 44567-662 | DILTIAZEM HYDROCHLORIDE in SODIUM CHLORIDE | injection, solution | 1 mg/mL | WG Critical Care, LLC | None |
| 44567-663 | DILTIAZEM HYDROCHLORIDE in SODIUM CHLORIDE | injection, solution | 1 mg/mL | WG Critical Care, LLC | None |
| 0187-2612 | TIAZAC EXTENDED RELEASE | capsule, extended release | 120 mg/1 | Bausch Health US, LLC | None |
| 0187-2613 | TIAZAC EXTENDED RELEASE | capsule, extended release | 180 mg/1 | Bausch Health US, LLC | None |
| 0187-2614 | TIAZAC EXTENDED RELEASE | capsule, extended release | 240 mg/1 | Bausch Health US, LLC | None |
| 0187-2615 | TIAZAC EXTENDED RELEASE | capsule, extended release | 300 mg/1 | Bausch Health US, LLC | None |
| 0187-2616 | TIAZAC EXTENDED RELEASE | capsule, extended release | 360 mg/1 | Bausch Health US, LLC | None |
| 0187-2617 | TIAZAC EXTENDED RELEASE | capsule, extended release | 420 mg/1 | Bausch Health US, LLC | None |
| 62037-597 | Cartia XT | capsule, extended release | 120 mg/1 | Actavis Pharma, Inc. | None |
| 63629-7896 | Cartia XT | capsule, extended release | 120 mg/1 | Bryant Ranch Prepack | None |
| 62037-598 | Cartia XT | capsule, extended release | 180 mg/1 | Actavis Pharma, Inc. | None |
| 71335-0879 | Cartia XT | capsule, extended release | 180 mg/1 | Bryant Ranch Prepack | None |
| 62037-599 | Cartia XT | capsule, extended release | 240 mg/1 | Actavis Pharma, Inc. | None |
| 62037-600 | Cartia XT | capsule, extended release | 300 mg/1 | Actavis Pharma, Inc. | None |
| 72189-344 | CARTIA XT | capsule, extended release | 300 mg/1 | DirectRx | None |
| 51662-1335 | DILTIAZEM HCI | injection | 5 mg/mL | HF Acquisition Co LLC, DBA HealthFirst | None |
| 51662-1457 | DILTIAZEM HCI | injection, powder, lyophilized, for solution | 100 mg/1 | HF Acquisition Co LLC, DBA HealthFirst | None |
| 72189-409 | Diltiazem HCL ER | capsule, extended release | 300 mg/1 | Direct_Rx | None |
| 60687-195 | Diltiazem Hydrochloride Extended-Release | capsule, coated, extended release | 120 mg/1 | American Health Packaging | None |
| 63629-2154 | Diltiazem Hydrochloride Extended-Release | capsule, coated, extended release | 120 mg/1 | Bryant Ranch Prepack | None |
| 71335-0745 | Diltiazem Hydrochloride Extended-Release | capsule, coated, extended release | 120 mg/1 | Bryant Ranch Prepack | None |
| 71335-1223 | Diltiazem Hydrochloride Extended-Release | capsule, coated, extended release | 120 mg/1 | Bryant Ranch Prepack | None |
| 71335-1611 | Diltiazem Hydrochloride Extended-Release | capsule, coated, extended release | 120 mg/1 | Bryant Ranch Prepack | None |
| 60687-206 | Diltiazem Hydrochloride Extended-Release | capsule, coated, extended release | 180 mg/1 | American Health Packaging | None |
| 71335-1043 | Diltiazem Hydrochloride Extended-Release | capsule, coated, extended release | 180 mg/1 | Bryant Ranch Prepack | None |
| 71335-1063 | Diltiazem Hydrochloride Extended-Release | capsule, coated, extended release | 180 mg/1 | Bryant Ranch Prepack | None |
Showing 40 of 299 listings.
Questions
Is diltiazem a controlled substance?
No. Diltiazem is not a federally controlled substance. None of its FDA NDC listings carries a DEA schedule, and diltiazem is not on the DEA controlled substances list.
Is diltiazem a narcotic?
No. Diltiazem is not on the DEA controlled substances list, so the DEA does not classify it as a narcotic. Its FDA established pharmacologic class is Calcium Channel Blocker.
Does this page cover state schedules?
No. This page reports the federal schedule only. Some states schedule drugs on their own; check your state board of pharmacy.
More on Diltiazem
- What is Diltiazem used for?FDA label uses
- Generic for Cardizem CDFDA Orange Book
- Generic for Cardizem SRFDA Orange Book
- Generic for Dilacor XRFDA Orange Book
- Generic for TiazacFDA Orange Book
- Generic for CardizemFDA Orange Book
- Generic for Cardizem LAFDA Orange Book
- What is Cartia Xt used for?FDA label uses
- Is Cartia Xt a controlled substance?Federal schedule
- What is Tiadylt ER used for?FDA label uses
- Is Tiadylt ER a controlled substance?Federal schedule
- What is Matzim LA used for?FDA label uses
- Is Matzim LA a controlled substance?Federal schedule
- Calcium Channel Blockers listFDA drug class
- NDC 0187-0771Diltiazem NDC record
- NDC 0187-0772Diltiazem NDC record